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Vishay General Semiconductor - Diodes Division SM15T10A-M3/57T
- Part No.:
- SM15T10A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T10A-M3/57T.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,026
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Product details
Overview
SM15T10A-M3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, featuring 10 V standoff voltage (VWM), 14.5 V clamping voltage (VC) at 103 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning-induced surges in automotive and industrial control systems.
For engineers reviewing the SM15T10A-M3/57T datasheet, SM15T10A-M3/57T pinout, SM15T10A-M3/57T application, or SM15T10A-M3/57T equivalent, key selection criteria include verified clamping performance at 103 A, halogen-free RoHS-compliant construction (M3 suffix), unidirectional polarity with cathode band marking, and AEC-Q101 qualification eligibility via HM3 variant.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under transient overvoltage exceeding 10.5 V breakdown (VBR min), it avalanches to clamp reverse voltage at ≤14.5 V while conducting up to 103 A (10/1000 μs). Its low-inductance SMC package and glass-passivated junction enable fast response (<1 ns) and stable clamping across -65 °C to +150 °C junction temperature range.
Designed for high-energy threat suppression, the device sustains 1500 W peak pulse power only when mounted on 8.0 mm × 8.0 mm copper pads per terminal and derated above 25 °C ambient-thermal resistance junction-to-ambient is 75 °C/W. Failure mode under overstress is short-circuit, consistent with IEC 61000-4-5 compliance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - Maximum continuous reverse working voltage before conduction begins; defines maximum normal operating bus voltage. |
| VBR (Breakdown Voltage) | 9.5–10.5 V at 1.0 mA - Confirmed avalanche initiation threshold; ensures reliable triggering within ±5% tolerance. |
| VC (Clamping Voltage) | 14.5 V at 103 A (10/1000 μs) - Measured peak voltage during worst-case surge; determines protected circuit's maximum stress level. |
| PPPM (Peak Pulse Power) | 1500 W - Sustained energy absorption capability for standardized lightning surge waveforms; validates robustness vs. IEC 61000-4-5 Level 4. |
| TJ max | +150 °C - Maximum junction temperature rating; enables operation in under-hood automotive and industrial motor drive environments. |
| Package | SMC (DO-214AB) - Industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint; supports automated placement and reflow soldering per J-STD-020 MSL Level 1. |
Pinout & Package
SM15T10A-M3/57T uses the SMC (DO-214AB) package: molded plastic case with matte tin-plated leads, 0.320" (8.13 mm) length, 0.246" (6.22 mm) width, and cathode band marking on one end. Polarity is unidirectional; the banded end is the cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased anode connection point | Connected to protected line (e.g., CAN_H, power rail); conducts surge current to ground when voltage exceeds VBR. |
| Anode (unmarked end) | Reference/ground return path | Typically tied to system ground or low-impedance return plane; completes shunt path during transient event. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Validated energy handling for lightning-induced surges per IEC 61000-4-5; eliminates need for external series impedance in many designs. |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes voltage overshoot during clamping-critical for protecting 12 V logic interfaces and automotive microcontrollers. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration requirements and EU Directive 2011/65/EU; supports green manufacturing programs. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow assembly without moisture sensitivity concerns or baking preconditioning. |
| AEC-Q101 qualification pathway | HM3 variant (e.g., SM15T10AHM3_A/H) is qualified for automotive applications-supports design reuse across commercial and automotive platforms. |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump and alternator ripple transients in passenger vehicles. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and chassis ground, triggered within nanoseconds of overvoltage onset. Use Value: Clamps transients to ≤14.5 V, preventing damage to downstream PMICs and microcontrollers rated for 16 V absolute maximum. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC I/O modules in factory automation. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (with optional CA variant) placed across differential signal pairs to absorb ESD and inductive kickback. Use Value: Limits voltage excursion to 14.5 V during 103 A surge, preserving 24 V sensor output integrity and avoiding ADC saturation or latch-up. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Securing 48 V PoE-powered network switches against induced surges from nearby AC mains wiring or lightning coupling. IC Role / Device Role / Timing Role: Primary-level TVS on DC input stage, coordinated with upstream fuse and secondary-stage polymer PTC for staged protection. Use Value: Absorbs 1500 W surge energy without degradation, maintaining <10 μA leakage at 10 V to avoid standby power loss. |
Use Scenario: Shielding H-bridge gate drivers in smart washing machine motor controllers from back-EMF spikes generated by brushed DC motors. IC Role / Device Role / Timing Role: Unidirectional TVS across each half-bridge leg (VDD-to-GND), activated only during negative-going transients. Use Value: Withstands 200 A non-repetitive forward surge (IFSM), surviving repeated motor commutation events without parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Lower PPPM (400 W), same VWM (10 V), higher VC (16.7 V at 24.2 A), SMA package (smaller thermal mass). | Limited to lower-energy threats (e.g., ESD, local switching noise); unsuitable for lightning-level surges. | Select SMAJ10A only when board space is constrained and threat level is below 1 kV/42 Ω IEC 61000-4-5. |
| SMCJ10A | Same PPPM (1500 W), identical VWM/VC specs, but E3 suffix (RoHS-compliant, not halogen-free); SMC package same footprint. | No functional difference in protection performance; differs only in material compliance (halogen content). | Choose SM15T10A-M3/57T over SMCJ10A when halogen-free requirement is mandated by OEM or environmental policy. |
Compared with SMAJ10A and SMCJ10A, SM15T10A-M3/57T delivers identical 1500 W surge capacity and 14.5 V clamping in a halogen-free, RoHS-compliant SMC package-making it the preferred choice for automotive Tier 1 suppliers and industrial OEMs requiring full material compliance without sacrificing protection margin.
Availability
SM15T10A-M3/57T is available at Aetrix Electronics and suitable for automotive ECU power line protection, industrial sensor interface hardening, telecom DC input surge suppression, and consumer appliance motor drive circuits requiring stable component supply and long-term lifecycle support.
Supply support for SM15T10A-M3/57T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, power handling, and automotive-grade qualification.
The SM15T Series was engineered specifically for high-energy transient suppression in harsh environments-targeting automotive power distribution, industrial motor controls, and telecom infrastructure where 1500 W surge immunity and AEC-Q101 readiness are mandatory.
FAQ
What is the clamping voltage of SM15T10A-M3/57T at its rated peak pulse current?
The SM15T10A-M3/57T has a maximum clamping voltage (VC) of 14.5 V when subjected to its rated peak pulse current of 103 A using the standard 10/1000 μs waveform. This value is measured under defined test conditions-mounted on 8.0 mm × 8.0 mm copper pads-and ensures predictable overvoltage limiting for downstream components in the protected circuit.
Is SM15T10A-M3/57T suitable for automotive applications?
SM15T10A-M3/57T itself is commercial-grade with halogen-free RoHS compliance (M3 suffix), but the SM15T family includes AEC-Q101-qualified variants (e.g., SM15T10AHM3_A/H). For automotive use, engineers must specify the HM3 suffix version; SM15T10A-M3/57T meets all electrical and mechanical specs required for automotive deployment except formal qualification documentation.
How does the M3 suffix differ from E3 in SM15T10A-M3/57T?
The M3 suffix indicates halogen-free, RoHS-compliant construction meeting IPC-1752A material declarations, whereas E3 denotes RoHS-compliant but not halogen-free. Both share identical electrical characteristics, SMC packaging, and thermal performance-but SM15T10A-M3/57T satisfies stricter environmental mandates such as those from European automotive OEMs and green electronics initiatives.
What is the maximum operating temperature for SM15T10A-M3/57T?
The SM15T10A-M3/57T has a maximum junction temperature (TJ max) of +150 °C and an operating junction/storage temperature range of -65 °C to +150 °C. This allows reliable operation in under-hood automotive environments, industrial motor drives, and enclosed power supplies where ambient temperatures exceed 100 °C.
Does SM15T10A-M3/57T require heatsinking for standard operation?
No external heatsink is required for SM15T10A-M3/57T under normal continuous operation-the 6.5 W steady-state power dissipation (PD) is managed via PCB copper pad thermal conduction. However, for repeated high-energy transients, adherence to the recommended 8.0 mm × 8.0 mm copper pad layout per terminal is essential to maintain thermal resistance at 75 °C/W and prevent junction overheating.
SM15T10A-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- SM15T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 103A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SM15T10A-M3/57T FAQ
1.How can I place an order for SM15T10A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T10A-M3/57T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SM15T10A-M3/57T reliable?
The price and inventory of SM15T10A-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T10A-M3/57T is usually 5 days.
3.What payment methods are accepted for SM15T10A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T10A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T10A-M3/57T?
SM15T10A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T10A-M3/57T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SM15T10A-M3/57T?
For technical support, including SM15T10A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T10A-M3/57T requirements.
6.How does Aetrix verify that SM15T10A-M3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T10A-M3/57T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SM15T10A-M3/57T meets industry standards.
7.What is the process for return or replacement of SM15T10A-M3/57T?
All SM15T10A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T10A-M3/57T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SM15T10A-M3/57T part is unused and in its original packaging.
Return procedure for SM15T10A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T10A-M3/57T Tags
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